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Grainger offers an attic ventilator selection to help you find the right solution for your attic exhaust needs. Hot air can build up in attic space and make your air conditioning system work harder in warmer weather. Let out the hot air and reduce your energy bills with roof mounted and gable mounted attic ventilators featuring thermostatic control. Reduce energy bills even more with solar powered attic ventilators. Find the attic ventilator that fits your application at Grainger!